Patent US2921206A successfully refreshed from Google Patents.
US2921206A
Expired / Lapsed
US
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Semi-conductor trigger circuits
Assignee: RCA Corp
•
Filing: 1954-12-23
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Granted: 1960-01-12
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Marshall C Kidd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2629833A
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US2764642A
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US2790034A
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US2709787A
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US2705287A
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US2830199A
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US8644896B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |